I recently asked a similar questions (did not mention rdb though that was exactly what I had in my mind:), maybe you will find Stephane's answer informative: https://lists.linuxcontainers.org/pipermail/lxc-users/2015-November/010414.html
b. On 25 November 2015 at 16:40, Dilvan Moreira <dil...@gmail.com> wrote: > Hi, > > I am setting up a small cluster using a VM (master) and 3 bare metal > servers (all running Ubuntu 14.04). Each bare metal server also has 2T of > disk space exported using Ceph 0.94.5 > <http://docs.ceph.com/docs/v0.94.5/start/>. > > I would like to be able to run LXD VMs (containers) on this cluster and to > easily migrate these VMs to different nodes. I could have installed > OpenStack, but that seems rather complicated to me (maybe OpenStack is an > overkill for such a small cluster like mine). So, my solution was to create > a big Ceph/rbd block volume and mount it at the LXD container folder ( > /var/lib/lxd/containers) in all nodes. To move a VM, I just shut it down > in one node and then start it again in another. > > For just one VM it's working fine, but it doesn't seem to me as a long > term solution. My questions: > > 1. > > Is there a way to pass a block volume (Ceph/rbd) or folder to a LXD > VM, so LXD itself would mount the root folder (/)? It would be nice to > have a block volume for each VM (and not all VMs using the same folder). > 2. > > Is there a simpler solution than OpenStack for my use case (or a > simpler installation procedure for OpenStack)? > 3. > > Ultimately, I would like my cluster to have the ability to schedule > VMs to nodes, move VMs from failed nodes, etc. Any suggestions on how to > get that? > > -- > Dilvan de Abreu Moreira, Ph.D. dil...@gmail.com > http://java.icmc.usp.br > Warning: I use a spam filter, some emails sent to me CAN be lost! > > _______________________________________________ > lxc-users mailing list > lxc-users@lists.linuxcontainers.org > http://lists.linuxcontainers.org/listinfo/lxc-users >
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